Allen-Bradley HP Inverting Fault Circuit Breaker Kit

Transcription

1 Allen-Bradley HP Inverting Fault Circuit Breaker Kit Cat. Nos IFB600 What This Option Provides This option is intended to be applied to regenerative 1397 drives with high inertia loads. High inertia loads are those where the reflected load inertia to the motor is equal to or greater than the motor s own inertia, or where the drive is frequently regenerating power to the AC line, such as in unwind and pay-off applications. An inverting fault typically occurs as a result of loss of AC line. If this happens, the AC input transformer becomes a short circuit across the motor. Since the SCRs in the bridge no longer turn off, the motor s stored mechanical energy is regenerated into the short circuit. The inverting Fault Circuit Breaker interrupts the generator action, protecting the SCR bridge and the motor. The Inverting Fault Circuit Breaker is a magnetic-only breaker with an adjustable instananeous magnetic trip unit. The trip settings are adjusted by a sliding control on the front of the breaker. The standard interrupt rating is 30,000 amperes symmetrical at 480 VAC. What This Kit Contains Each 1397-Inverting Fault Circuit Breaker kit includes: (1)Inverting Fault Circuit Breaker Assembly (6) 6 12mm Self-Tapping Screw (1) Wire Assembly (1) 1/4" Spade Terminal, ale (1) 7/16" Split Lockwashers (1) 1/2" Ring Lug, ga. (1) Twisted Pair Wire Assembly (2) Shield, Top and Bottom What These Instructions Contain These instructions and any accompanying instructions contain the necessary information to install a 1397 Inverting Fault Circuit Breaker Kit on 1397 DC Drives rated 400 to 460 VAC only , September, 1998

2 Inverting Fault Circuit Breaker Installation! ATTENTION: Electric Shock can cause injury or death. Remove all power before working on this product. The drive is at line voltage when connected to incoming AC power. Before proceeding with any installation or troubleshooting activity, disconnect, lockout and tag all incoming power to the drive. Verify with a voltmeter than no voltage exists at input terminals 181 (L1), 182 (L2) and 183 (L3). You are responsible for conforming with all applicable local, national and international codes when installing this kit. ounting 1 Remove and lockout all incoming power to the drive. Verify that the Inverting Fault Circuit Breaker switch is in the OFF position. 2 Choose an appropriate location for mounting the Inverting Fault Circuit Breaker. Note that wire assemblies shipped with the kit are cm (60 inches) in length. 3 Drill the holes (5.4 mm diameter) for the six (6) 6 self-tapping screws provided to mount the Inverting Fault Circuit Breaker assembly. Use the mounting hole pattern shown in Figure 1. 4 ount the Inverting Fault Circuit Breaker as follows: a. Drive the top two (2) 6 self tapping screws half way into the holes drilled in Step 3. b. Lift the Inverting Fault Circuit Breaker assembly up into position and mount it so the keyholes fit over the screw heads installed in step a. Slide the assembly down so the screws are in the keyhole slots. c. Install the four remaining 6 screws. d. Tighten all screws to 5.1 Nm (45 in-lb) +/- 10%

3 1397 Inverting Fault Circuit Breaker 3 Figure 1. Inverting Fault Circuit Breaker ounting Hole Pattern] 13.32" [38.3 mm] 10.68" [271.3 mm] 5.34" [135.6 mm] 0.213" [5.4 mm] Dia. (6) holes Wiring The method used to wire the Inverting Fault Circuit Breaker depends on whether the drive is equipped with dynamic braking and/or a motor series field. Choose the appropriate wiring procedure for your application from the following procedures: If you are using the Inverting Fault Circuit Breaker only (no dynamic braking and no motor series field): 1 Referring to Figure 2, connect the motor armature lead A2 to Inverting Fault Circuit Breaker terminal OT. Refer to Figure 9 for the location of the breakers s OT terminal.) Terminate the breaker side of the leads with lugs of the appropriate gauge.

4 Inverting Fault Circuit Breaker Figure 2. Inverting Fault Circuit Breaker Diagram 400 HP to VAC 47 (+) otor 81 AC 82 Input / L1 182 / L2 183 / L2 1FU 2FU 3FU S6R DC Aramature Supply Removable Link Not Removed DB A2/S1 otor Armature otor A2 From Field Supply RRB1-5 AUX RRB1-6 P6-2 DBCR P6-5 Field/DB TB 35/F2 F2 37/F1 F (-) otor Shunt Field Jumper ust be installed except for Special Apps. Disconnect Existing A2 at Power I/F PC Board To Power I/F PC Board A2 Not used on standard DB application. Used only for special applications DRV DT S2 Inverting Fault Breaker A2 Inverting Fault Breaker Aux Control 1> To regulator terminals 9 & 11 1> Any other customer interlocks must be connected in series to terminals 9 and Using wire of the same gauge as the motor leads, connect Inverting Fault Circuit Breaker terminal DRV to drive output terminal S2. (Refer to Figure 9 for the location of the breaker s DRV terminal.) Terminate the breaker side of the wires with lugs of the appropriate gauge. 3 Connect motor armature lead to drive terminal. Proceed to "Wire Assembly Connections."

5 1397 Inverting Fault Circuit Breaker 5 Wiring If you are using the Inverting Fault Circuit Breaker with Dynamic Braking: 1 Refer to Figure 7. Remove the removable link (bus section connected to drive output terminal A2/S1) by removing the four nuts and bolts that hold it in place. You may need to dismount the drive in order to gain access to the removable link. If so, re-mount the drive after the link has been removed. 2 Refer to Figure 3. Connect motor armature lead A2 to Inverting Fault Circuit Breaker terminal OT. (See Figure 9 for the location of the breakers OT terminal.) Terminate the breaker side of the leads with lugs of the appropriate gauge. Figure 3. Inverter Fault Circuit Breaker with Dynamic Braking Drive otor DB DB Resistor otor Armature Removable Link Removed A2/S1 Customer supplied wire. Size to same gauge as DB kit leads. otor A2 Disconnect existing A2 at Power I/F PC board DRV OT S2 Inverting Fault Breaker A2 Inverting Fault Breaker Aux Contact To Power I/F PC board A2 1 > To regulator board terminals 9 & 11 1 > Any other customer interlocks must be connected in series to terminals 9 and Using wire the same gauge as the motor leads, connect Inverting Fault Circuit Breaker terminal DRV to drive output terminal S2. (see figure 9 for the location of the breaker s DRV terminal.) Terminate the breaker side of the wires with lugs of the appropriate gauge. Using wire the same gauge as the DB kit leads, connect Inverting Fault Circuit Breaker terminal OT to drive output terminal A2/S1. 4 Connect motor armature lead to drive terminal. Proceed to "Wire Assembly Connections."

6 Inverting Fault Circuit Breaker Wiring If you are using the Inverting Fault Circuit Breaker with a Series Field (S1 to A2): 1 Refer to Figure 4. Connect motor series field lead S2 to Inverting Fault Circuit Breaker terminal OT. (See Figure 9 for location of the breaker s OT terminal. Terminate the breaker side of the leads with lugs of the appropriate gauge. Figure 4. Inverting Fault Circuit Breaker with Series Field (S1 to A2) Drive otor DB otor Armature Removable Link Not Removed A2/S1 otor A2 otor S1 Series Field DRV OT otor S2 S2 Inverting Fault Breaker A2 Disconnect existing A2 at Power I/F PC Board Inverting Fault Breaker Aux Contact To Power I/F PC Board A2 1 > To regulator board terminals 9 & 11 1 > Any other customer interlocks must be connected in series to terminals 9 and Using wire the same gauge as the motor leads, connect Inverting Fault Circuit Breaker terminal DRV to drive output terminal S2. (see Figure 9 for the location of the breaker s DRV terminal.) Terminate the breaker side of the wires with lugs of the appropriate gauge. 3 Connect motor armature lead to drive terminal. Proceed to "Wire Assembly Connections."

7 1397 Inverting Fault Circuit Breaker 7 Wiring If you are using the Inverting Fault Circuit Breaker with a Series Field (S1 to A2) and Dynamic Braking: 1 Refer to Figure 7. Remove the removable link (bus section connected to drive output terminal A2/S1) by removing the four nuts and bolts that hold it in place. You may need to dismount the drive in order to gain access to the removable link. If so, re-mount the drive after the link has been removed. 2 Refer to Figure 5. Connect motor series field lead S2 to Inverting Fault Circuit Breaker terminal OT. (See Figure 9 for the location of the breaker s OT terminal.) Terminate the breaker side of the leads with lugs of the appropriate gauge. Figure 5. Inverting Fault Circuit Breaker with a Series Field and Dynamic Braking Drive otor otor Armature Removable Link Removed A2/S1 DRV Customer supplied wire Size to same gauge as DB kit leads. OT otor A2 otor S1 Series Field otor S2 S2 A2 Disconnect existing A2 at Power I/F PC board Inverting Fault Breaker Aux Contact To Power I/F PC board A2 1 > To Regulator board terminals 9 & 11 1 > Any other customer interlocks must be connected in series to terminals 9 and 11 3 Using wire of the same gauge as the motor leads, connect Inverting Fault Circuit Breaker terminal DRV to drive output terminal S2. (See Figure 9 for the location of the breaker s DRV terminal.) Terminate the breaker side of the wires with lugs of the appropriate gauge. 4 Using wire the same gauge as the DB kit leads, connect motor armature lead to drive terminal. 5 Connect motor armature lead to drive terminal. Proceed to "Wire Assembly Connections".

8 8 Wiring 1397 Inverting Fault Circuit Breaker If you are using the Inverting Fault Circuit Breaker with a Series Field (S1 to A2/S1) and Dynamic Braking: 1 Refer to Figure 7. Remove the removable link (bus section connected to drive output terminal A2/S1) by removing the four nuts and bolts that hold it in place. You may need to dismount the drive in order to gain access to the removable link. If so, re-mount the drive after the link has been removed. 2 Refer to Figure 6. Connect motor series field lead S2 to Inverting Fault Circuit Breaker terminal OT. (See Figure 9 for the location of the breaker s OT terminal.) Terminate the breaker side of the leads with lugs of the appropriate gauge. Figure 6 Inverting Fault Circuit Breaker with Series Field (S1 to A2/S1) and Dynamic Braking Drive otor DB Optional DB Resistor otor Armature otor A2 Removable Link Removed otor S1 Series Field DRV OT otor S2 S2 Inverting Fault Breaker A2 Disconnect existing A2 at Power I/F PC board To Power I/F PC board A2 Inverting Fault Breaker Aux Contact 1> To Regulator board terminals 9 & 11 1 > Any other customer interlocks must be connected in series to terminals 9 and Using wire of the same gauge as the motor leads, connect Inverting Fault Circuit Breaker terminal DRV to drive output terminal S2. (See Figure 9 for the location of the breaker s DRV terminal.) Terminate the breaker side of the wires with lugs of the appropriate gauge. 4 Using wire the same gauge as the DB kit leads, connect motor armature lead to drive terminal. 5 Using wire of the same gauge as the motor leads, connect motor armature lead A2 to drive output terminal A2/S1. 6 Connect motor armature lead to drive terminal. Proceed to "Wire Assembly Connections".

9 1397 Inverting Fault Circuit Breaker 9 Figure 7. Removable Link Location S2 DBR A2/S1 Removable Link TOP VIEW Wire Assembly Connections 1 Remove the two screws and open the drive cover (see Figure 8). 2 Locate and remove the spade connector from terminal A2 on the Power Interface board, located in the center of the drive. Cap this lead with the male spade connector supplied in this kit. (Refer to Figure 8 for the location of the Power Interface board and for the location of terminal A2.) 3 Attach the spade connector on the A2 FDBK wire lead to terminal A2 on the Power Interface board. Route this wire to Inverting Fault Circuit Breaker terminal OT. Cut the wire to length as required and terminate the end with the ring lug supplied in the kit. 4 Connect the ring lug to terminal OT of the Inverting Fault Circuit Breaker as shown in Figure 9. 5 Connect the spade connectors of the twisted pair harness to the male connectors on the yellow lead and the blue/yellow striped lead coming out of the Inverting Fault Circuit Breaker (see Figure 9). Route this harness to the bottom of the drive. Cut the wires to length as required, and connect them to terminals 9 and 11 on the Regulator board control terminal strip as shown in Figure 10. If any other interlocks are required for your application, they must be connected in series to the Customer Interlock Input (terminals 9 and 11) along with the circuit breaker.

10 Inverting Fault Circuit Breaker Figure 8. Power Interface Board and Terminal A2 Locations S2 DBR A2/S1 Remove Screws Line 3 Line 2 Line 1 S2 DBR A2/S1 A2 Enfld 1 Remove existing A2 connection

11 1397 Inverting Fault Circuit Breaker 11 Figure 9. Inverting Fault Circuit Breaker Terminal Locations TOP VIEW A2 FDBK to Power I/F Board Shield, Top and Bottom 2 Places SIDE VIEW A2 FDBK 5 x 16 mm Self Tapping Screw 8 Places 1/2" Ring Lug OT 6 x 12 mm Self Tapping Screw 6 Places To Regulator Board Terminal Block DRV BOTTO VIEW Figure 10. Control Terminal Strip Inverting Fault Circuit Breaker User Contacts

12 Inverting Fault Circuit Breaker Checking Circuit Breaker Settings 1 If necessary, adjust the circuit breaker settings using the requirements in the following table. Drive Rated 460 VAC 400 HP 500 HP 600 HP Required Setting Set at 2 (1900 A) Set at 3 (2300 A) Set at 4 (2600 A) 2 3 Check and verify all wiring before applying power. Ensure that wires are not in contact with hot components or sharp metal edges. Install the top and bottom shields using the following sequence: a. Refer to Figure 9 and loosen the (8) 5 x 16 mm screws in the face of the Assembly Base Plate. b. Insert the shield keyholes onto the screws and slide each shield into place. c. Tighten the screws to hold the shields in place. Do not overtighten. 4 Set the Inverting Fault Circuit Breaker to the ON position. 5 Remove the lockout and tag and reconnect power to the drive. 6 Turn on power to the drive and check for proper drive operation. Technical Specifications Allen Bradley Catalog Number: FK3101 Dimensions (HxWxD): mm x mm x mm Weight: kg (33.64 lb) Current 40 o C: 1200A Trip Amps 1500A to 3000A ax AC 50/60 Hz: 600 VAC ax DC Volts: 600 VDC

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15 Publication September, 1998 P/N191100(02) Supersedes July, 1998 Copyright 1995 Rockwell International Corporation. All rights reserved. Printed in USA.